From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 4 Nov 2008 12:30:57 +0000 (+0100)
Subject: ALSA: hda - Limit the number of GPIOs show in proc
X-Git-Tag: firefly_0821_release~16684^2~2^2~13
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=c4dc5071859bf666a5a9d6565f16c51a261a88b7;p=firefly-linux-kernel-4.4.55.git

ALSA: hda - Limit the number of GPIOs show in proc

Limit the number of GPIOs shown in proc.  Otherwise it gets too long
unnecessarily, and hard to analyze.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---

diff --git a/sound/pci/hda/hda_proc.c b/sound/pci/hda/hda_proc.c
index 743d77922bce..c39af986bff1 100644
--- a/sound/pci/hda/hda_proc.c
+++ b/sound/pci/hda/hda_proc.c
@@ -483,6 +483,8 @@ static void print_gpio(struct snd_info_buffer *buffer,
 		    (gpio & AC_GPIO_UNSOLICITED) ? 1 : 0,
 		    (gpio & AC_GPIO_WAKE) ? 1 : 0);
 	max = gpio & AC_GPIO_IO_COUNT;
+	if (!max || max > 8)
+		return;
 	enable = snd_hda_codec_read(codec, nid, 0,
 				    AC_VERB_GET_GPIO_MASK, 0);
 	direction = snd_hda_codec_read(codec, nid, 0,